arranged parts placement
added some holes around the object to speed up printing and add some style
removed the belt teeth as they don't print well at all.
removed some material so the belt can be seen
removed some material on each side and added a way to push the motor away to leave room for the electronics (for RAMPS electronics)
added a variable to offset the belt, and removed belt teeth as they don't print at all
added a way to move the top rods slots up or down to allow clearance for the aluminium plate
added more clearance for the bearing in diameter but removed some width so the belt doesn't catch on the side as much
added some clearance for the washers around the rods
added fan grill
added first version of spool holder
reversed y-motor by default so the motor wire comes out the correct way
small fix
added PG35L as second motor option
for dual extruders: separate both extruders so they can be joined face to face to maximize build volume
hide support bearings for now